Corner-fastener for screen-frames.



R. J. BURHEN. CORNER FASTENER FOR SCREEN FRAMES,

APPLICATION FI-LED MAY 13, i918.

Patented Apr. 29, 1919.

LSULBQ.,

M A/ q..

r l 1i.

.ddd

A Tra/RNIS Y,

y naci-,sia

'REINHART J. BURHEN, or KIRKWooD, MISSOURI, ASSIGNOB. To WALTER SCOTT, or f sT. LOUIS, MISSOURI.

CORNER-FASTENEn ron SCREEN-FRAMES.

Specification of Letters Patent.

i Application filed May 13, 1918. i Serial No. 234,318.

To all @57mm z'z may concern:

Be it known that I, REINHART J. BURIIEN,

a citizen of the United States, residing at Kirkwood, State of Missouri, have invented certain new and useful Improvements Vin Corner Fasteners for Screen Frames, of which the following is a full, clear, and eX- act description, reference being had to the accompanying drawings, forming Va part hereof.

The present invention is directed to improvements in corner fasteners for` screen frames and the like; and has for its object to provide a corner piece which may be stamped out of a single piece of metal and s0 formed as to per-mit attachment to the rails of the frame without the use of screws, nails or the like. A further obj ect is to provide a fastening member which may be employed in places other than the corners of the frame, an advantage which will be clearly apparent from the following detailed description in connection with the accompanying drawings in which- 4Figure 1 represents a front elevation of a portion of a screen frame showing my invention applied to the corners of the frame; Fig. 2 is an enlarged front elevation of the corner of the frame with the fastener in position; Fig. 3 is a vertical edge view; Fig. i is a vertical cross-section on the line 4.-4 of Fig. 2; Fig. 5 is a horizontal cross-section on the line 5-5 of Fig. 2; Fig. 6 is a detached perspective of the fastener; and Fig. 7 is a plan of a portion of a frame showing the fastener applied t0 the rail of the frame at a point removed from the corner.

Referring to the drawings, and for the present to Figs. 1 to 6 inclusive, 1, 1, represent the vertical side rails or Stiles of a screen frame and 2 the top horizontal rail, the terminals of the rails 1 abutting against the bottom face o-f the rail 2. In the present embodiment of my invention the opposite side faces of the rail 2 are formed with longitudinal parallel grooves a, a, which are in transverse alinement, there being two sets of grooves in the example here shown. The outer edges of the vertical rails 1 are formed with longitudinal parallel grooves h, h, the several grooves being designed to accommodate certain formations on the fastener. The fastener comprises a U-shaped (preferably sheet metal) member 3 from whose side walls or arms m are punched the wings w` bent outwardly into planes substantially parallel to the planes of disposition of said arms, the wings flaring outwardly somewhat, thereby leaving openings 0 in the members m from which they were punched. The terminals of the wings w have formed thereon the inwardly deiiected flanges or lips z5 whichpare designed to enter the grooves ca of the member 2. In like manner the sides of the arms m of the fastener are formed with lateral flanges d which terminate in inwardly turned lips d', the portions d bearing against the vertical edges of the rails 1, 1, and the lips d being received by the grooves h. In practice, the fastener is rst applied to the end of the rail 1, the lips d being slipped into the grooves h, the base m of the U-sha-ped member limiting its movement along the rail, after which the lips :t are slipped into the ends of the grooves a of the member 2 thus completing the connection. The bottom rail (not shown) is applied in the same manner.

Should the frame be provided with an intermediate rail or member 5, the fastener may be shifted to an intermediate point along the top rail as Shown in Fig. 7 so that the same serves not only as a corner fastener but as a fastener generally where the meeting portions of two rails are to be joined. While I have shown the rail 2 as the horizontal member and the rail 1 as the vertical member of the frame, it is obvious that the rail 1 may be the horizontal and the rail 2 the vertical member.

As pointed out above, the fastener while preferably stamped and bent from a sheet metal blank, may be cast and I do not therefore wish to be limited to either the manner of its formationV or the material of which the same shall be constructed. Obviously the fastener may be changed in minor particulars without involving a departure from the nature or spirit of invention. In the present embodiment the flanges ci, and lips d are bent into planes perpendicular to the plane of disposition of the lips t. The fastener is not to be limited for use on screen frames. It may be used wherever applicable.

IIaving described my invention what I claim is:

1. A fastener of the character described comprising a substantially U-shaped member, wings leading from the bases of the arms of said 'member and turned in a direction opposite to said arms, the free ends of the wings being provided with inwardly turned lips, and the sides of the arms aforesaid being provided with flanges in opposed relation, said flanges terminating in inwardly turned lips, the lips of the flanges and wings being receivable in suitable grooves or recesses formed in the rails to be fastened together.

2. In combination with a rail provided with side parallel grooves, al second rail abutting against the first rail and provided with parallel grooves on faces disposedv transversely to the grooved faces of the first rail, a fastener provided with arms engaging the faces of the second rail disposed contiguous to the grooved faces of the first rail, the sides of said arms being formed with flanges engaging the grooved faces of the second rail, the flanges terminating in lips received by the grooves of said faces, suitable Wings leading from the bases of the arms aforesaid and embracing the 'grooved faces of the first rail, said wings terminating in lips for entering the grooves of said faces.

3. A corner piece for frames comprising a one piece sheet metal U-shaped member, the sides `of the arms thereof being provided with opposing parallel flanges formed with inwardly turned lips, wings punched from the arms and ,bentl in planes substantially parallel thereto but in opposite direction therefrom, the free ends of the wings terminating in inwardly turned lips.

In testimony whereof I aX my signature, in presence'of two witnesses.

' REINHART J. BURHEY.

l/Vitnesses EMIL STAREK, v ELSE M. SIEGEL.

Copies of this patent may be obtained for ve cents each, by addressing the "Commissioner of Patents, Washington, D. C. 

